Study on the Influence of Internal Water Pressure on the Internal Force of Circular Hydraulic Tunnel Lining
The internal water pressure condition influences the internal force of the circular hydraulic tunnel lining. However, calculating the lining’s internal force of this type of tunnel still lacks practical theory. Based on the modified routine method and the theory of structural mechanics, the internal...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/21/11271 |
| _version_ | 1797469138591940608 |
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| author | Yueyue Zhu Cheng Liu |
| author_facet | Yueyue Zhu Cheng Liu |
| author_sort | Yueyue Zhu |
| collection | DOAJ |
| description | The internal water pressure condition influences the internal force of the circular hydraulic tunnel lining. However, calculating the lining’s internal force of this type of tunnel still lacks practical theory. Based on the modified routine method and the theory of structural mechanics, the internal stress model of the tunnel section is established in this paper. The general calculation formula of lining internal force is deduced by considering arbitrary water level height and different water conveyance pressures. The formula is used to calculate the internal force of the lining under the action of internal water pressure and the influence laws of water level height and water conveyance pressure are explored, respectively. In addition, case analysis was carried out for several typical projects. The results show that the maximum internal force of the lining increases with the increase of water pressure and inner radius and the maximum internal force is in a fixed special position when the water is conveyed under pressure. When the water is conveyed without pressure, the internal force of the lining will increase with the increased water level. However, the maximum bending moment and axial force will reduce at the special water level. This calculation theory considering different working conditions of internal water pressure solves the calculation problem of the internal force of a circular hydraulic tunnel. It improves the design theory of tunnel structure and provides a theoretical basis for this type of tunnel’s structural design and safe operation. |
| first_indexed | 2024-03-09T19:17:14Z |
| format | Article |
| id | doaj.art-8733606508b04f388e31ebc07f2284b1 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T19:17:14Z |
| publishDate | 2022-11-01 |
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| series | Applied Sciences |
| spelling | doaj.art-8733606508b04f388e31ebc07f2284b12023-11-24T03:40:53ZengMDPI AGApplied Sciences2076-34172022-11-0112211127110.3390/app122111271Study on the Influence of Internal Water Pressure on the Internal Force of Circular Hydraulic Tunnel LiningYueyue Zhu0Cheng Liu1School of Civil Engineering, Nanjing Forestry University, Nanjing 210037, ChinaSchool of Civil Engineering, Nanjing Forestry University, Nanjing 210037, ChinaThe internal water pressure condition influences the internal force of the circular hydraulic tunnel lining. However, calculating the lining’s internal force of this type of tunnel still lacks practical theory. Based on the modified routine method and the theory of structural mechanics, the internal stress model of the tunnel section is established in this paper. The general calculation formula of lining internal force is deduced by considering arbitrary water level height and different water conveyance pressures. The formula is used to calculate the internal force of the lining under the action of internal water pressure and the influence laws of water level height and water conveyance pressure are explored, respectively. In addition, case analysis was carried out for several typical projects. The results show that the maximum internal force of the lining increases with the increase of water pressure and inner radius and the maximum internal force is in a fixed special position when the water is conveyed under pressure. When the water is conveyed without pressure, the internal force of the lining will increase with the increased water level. However, the maximum bending moment and axial force will reduce at the special water level. This calculation theory considering different working conditions of internal water pressure solves the calculation problem of the internal force of a circular hydraulic tunnel. It improves the design theory of tunnel structure and provides a theoretical basis for this type of tunnel’s structural design and safe operation.https://www.mdpi.com/2076-3417/12/21/11271hydraulic tunnelwater conveyance pressuremodified routine methodlining internal forcewater level |
| spellingShingle | Yueyue Zhu Cheng Liu Study on the Influence of Internal Water Pressure on the Internal Force of Circular Hydraulic Tunnel Lining Applied Sciences hydraulic tunnel water conveyance pressure modified routine method lining internal force water level |
| title | Study on the Influence of Internal Water Pressure on the Internal Force of Circular Hydraulic Tunnel Lining |
| title_full | Study on the Influence of Internal Water Pressure on the Internal Force of Circular Hydraulic Tunnel Lining |
| title_fullStr | Study on the Influence of Internal Water Pressure on the Internal Force of Circular Hydraulic Tunnel Lining |
| title_full_unstemmed | Study on the Influence of Internal Water Pressure on the Internal Force of Circular Hydraulic Tunnel Lining |
| title_short | Study on the Influence of Internal Water Pressure on the Internal Force of Circular Hydraulic Tunnel Lining |
| title_sort | study on the influence of internal water pressure on the internal force of circular hydraulic tunnel lining |
| topic | hydraulic tunnel water conveyance pressure modified routine method lining internal force water level |
| url | https://www.mdpi.com/2076-3417/12/21/11271 |
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